Liftoff of SpaceX CRS-11 in June 2017. Credit: NASA/Bill IngallsToday’s “launch minus two days” weather forecast has been issued by meteorologists with the U.S. Air Force 45th Weather Squadron ahead of Monday’s planned liftoff of a SpaceX Falcon 9 rocket and Dragon spacecraft. The forecast continues to predict a 70 percent chance of favorable weather conditions. Primary concerns are cumulus clouds and the potential for precipitation in the flight path.Liftoff is scheduled for 12:31 p.m. EDT from Launch Complex 39A at NASA’s Kennedy Space Center in Florida. This will be SpaceX’s twelfth commercial resupply mission to the International Space Station.On Sunday, NASA TV will broadcast a prelaunch news conference at 2 p.m., followed at 3:30 p.m. by the “What’s on Board” science, research and technology briefing. Watch live at http://www.nasa.gov/ntv.